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de Freitas RA, Dos Passos RR, Dos Santos FCA, Bressan AFM, Carneiro FS, Lima VV, Giachini FRC. Interleukin-10 deficiency induces thoracic perivascular adipose tissue whitening and vascular remodeling. J Mol Histol 2024; 55:527-537. [PMID: 38898139 DOI: 10.1007/s10735-024-10202-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 05/15/2024] [Indexed: 06/21/2024]
Abstract
Perivascular adipose tissue (PVAT) is an adipose layer, surrounding blood vessels, with a local modulatory role. Interleukin-10 (IL-10) has been shown to modulate vascular tissue. This study aimed to characterize the endogenous role of IL-10 in vascular remodeling, and PVAT phenotyping. Thoracic aortic segments from control (C57BL/6J) and IL-10 knockout (IL-10-/-) male mice were used. Analyzes of aorta/PVAT morphometry, and elastin, collagen and reticulin deposition were performed. Tissue uncoupling protein 1 (UCP1) was accessed by Western blotting. Endogenous absence of IL-10 reduced total PVAT area (p = 0.0310), and wall/lumen ratio (p = 0.0024), whereas increased vascular area and thickness (p < 0.0001). Total collagen deposition was augmented in IL-10-/-, but under polarized light, the reduction of collagen-I (p = 0.0075) and the increase of collagen-III (p = 0.0055) was found, simultaneously with reduced elastic fibers deposition (p = 0.0282) and increased deposition of reticular fibers (p < 0.0001). Adipocyte area was augmented in the IL-10 absence (p = 0.0225), and UCP1 expression was reduced (p = 0.0420). Moreover, relative frequency of white adipose cells and connective tissue was augmented in IL-10-/- (p < 0.0001), added to a reduction in brown adipose cells (p < 0.0001). Altogether, these data characterize aorta PVAT from IL-10-/- as a white-like adipocyte phenotype. Endogenous IL-10 prevents vascular remodeling and favors a brown-like adipocyte phenotype, suggesting a modulatory role for IL-10 in PVAT plasticity.
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Affiliation(s)
- Raiany A de Freitas
- Institute of Biological Sciences, Federal University of Goias, Goiânia, Brazil
- Federal University of Mato Grosso Institute of Biological and Health Sciences, Barra do Garças, MT, Brazil
| | | | | | - Alecsander F M Bressan
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Fernando S Carneiro
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Victor V Lima
- Federal University of Mato Grosso Institute of Biological and Health Sciences, Barra do Garças, MT, Brazil
| | - Fernanda R C Giachini
- Institute of Biological Sciences, Federal University of Goias, Goiânia, Brazil.
- Federal University of Mato Grosso Institute of Biological and Health Sciences, Barra do Garças, MT, Brazil.
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Dos Passos RR, Santos CV, Priviero F, Briones AM, Tostes RC, Webb RC, Bomfim GF. Immunomodulatory Activity of Cytokines in Hypertension: A Vascular Perspective. Hypertension 2024; 81:1411-1423. [PMID: 38686582 PMCID: PMC11168883 DOI: 10.1161/hypertensionaha.124.21712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Cytokines play a crucial role in the structure and function of blood vessels in hypertension. Hypertension damages blood vessels by mechanisms linked to shear forces, activation of the renin-angiotensin-aldosterone and sympathetic nervous systems, oxidative stress, and a proinflammatory milieu that lead to the generation of neoantigens and damage-associated molecular patterns, ultimately triggering the release of numerous cytokines. Damage-associated molecular patterns are recognized by PRRs (pattern recognition receptors) and activate inflammatory mechanisms in endothelial cells, smooth muscle cells, perivascular nerves, and perivascular adipose tissue. Activated vascular cells also release cytokines and express factors that attract macrophages, dendritic cells, and lymphocytes to the blood vessels. Activated and differentiated T cells into Th1, Th17, and Th22 in secondary lymphoid organs migrate to the vessels, releasing specific cytokines that further contribute to vascular dysfunction and remodeling. This chronic inflammation alters the profile of endothelial and smooth muscle cells, making them dysfunctional. Here, we provide an overview of how cytokines contribute to hypertension by impacting the vasculature. Furthermore, we explore clinical perspectives about the modulation of cytokines as a potential therapeutic intervention to specifically target hypertension-linked vascular dysfunction.
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Affiliation(s)
- Rinaldo R Dos Passos
- Cardiovascular Translational Research Center, School of Medicine (R.R.d.P., C.V.S., F.P., R.C.W., G.F.B.), University of South Carolina, Columbia
| | - Cintia V Santos
- Cardiovascular Translational Research Center, School of Medicine (R.R.d.P., C.V.S., F.P., R.C.W., G.F.B.), University of South Carolina, Columbia
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Brazil (C.V.S., R.C.T.)
| | - Fernanda Priviero
- Cardiovascular Translational Research Center, School of Medicine (R.R.d.P., C.V.S., F.P., R.C.W., G.F.B.), University of South Carolina, Columbia
- Department of Biomedical Engineering, College of Engineering and Computing (F.P., R.C.W.), University of South Carolina, Columbia
| | - Ana M Briones
- Department of Pharmacology, Facultad de Medicina, Universidad Autónoma de Madrid, Spain (A.M.B.)
- Instituto de Investigación Sanitaria del Hospital Universitario La Paz (IdiPAZ), Madrid, Spain (A.M.B.)
- CIBER Cardiovascular, Madrid, Spain (A.M.B.)
| | - Rita C Tostes
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Brazil (C.V.S., R.C.T.)
| | - R Clinton Webb
- Cardiovascular Translational Research Center, School of Medicine (R.R.d.P., C.V.S., F.P., R.C.W., G.F.B.), University of South Carolina, Columbia
- Department of Biomedical Engineering, College of Engineering and Computing (F.P., R.C.W.), University of South Carolina, Columbia
| | - Gisele F Bomfim
- Cardiovascular Translational Research Center, School of Medicine (R.R.d.P., C.V.S., F.P., R.C.W., G.F.B.), University of South Carolina, Columbia
- NUPADS - Health Education and Research Center, Institute of Health Sciences, Federal University of Mato Grosso, Sinop, Brazil (G.F.B.)
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Souza SSD, Gomes AR, Guimarães ATB, Matos LPD, Mendonça JDS, Luz TMD, Matos SGDS, Rodrigues ASDL, Senthil-Nathan S, Rakib MRJ, Kamaraj C, Rocha TL, Islam ARMT, Malafaia G. Exposure to microcrystallized cellulose affects the health of tadpoles and sheds light on the threat these materials pose to amphibians. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 343:123236. [PMID: 38160776 DOI: 10.1016/j.envpol.2023.123236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 12/18/2023] [Accepted: 12/24/2023] [Indexed: 01/03/2024]
Abstract
The increasing use of cellulose-based materials (CBMs) has provided beneficial applications in different sectors. However, its release into environments may represent an ecological risk, therefore demanding that ecotoxicological studies be conducted to understand the risks (current and future) of CBM pollution. Thus, we evaluated the possible effects of microcrystalline cellulose (CMs) in Physalaemus cuvieri tadpoles. After seven days of exposure to CMs (at 58.29 and 100 mg/L), the animals were subjected to behavioral evaluation, and different biomarkers (biometric and biochemical) were evaluated. Although our data do not point to a neurotoxic effect of CMs (inferred by the absence of behavioral changes and changes in AChE and BChE activity), animals exposed to CMs showed differences in body condition. Furthermore, we noticed an increase in the frequency of erythrocyte nuclear abnormalities and DNA damage, which were correlated with the ingestion of CMs. We noticed that the antioxidant activity of tadpoles exposed to CMs (inferred by SOD, CAT, and DPPH radical scavenging activity) was insufficient to control the increase in ROS and MDA production. Furthermore, exposure to CMs induced a predominant Th2-specific immune response, marked by suppressed IFN-γ and increased IL-10 levels, with a consequent reduction in NO levels. Principal component analysis and IBRv-2 indicate, in general, a primarily more toxic response to animals exposed to the highest CM concentration. Therefore, our study evidence that CMs affect the health of P. cuvieri tadpoles and sheds light on the threat these materials pose to amphibians.
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Affiliation(s)
- Sindoval Silva de Souza
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil
| | - Alex Rodrigues Gomes
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Post-Graduation Program in Ecology, Conservation, And Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | | | - Letícia Paiva de Matos
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil
| | - Juliana Dos Santos Mendonça
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil
| | - Thiarlen Marinho da Luz
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, And Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | | | - Aline Sueli de Lima Rodrigues
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | - Sengottayan Senthil-Nathan
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tirunelveli, Tamil Nadu, 627 412, India
| | | | | | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiania, Goiás, Brazil; Post-Graduation Program in Biology of the Parasite-Host Relationship (PPGBRPH), Institute of Tropical Pathology and Public Health, Federal University of Goiás, Brazil
| | | | - Guilherme Malafaia
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, And Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Biology of the Parasite-Host Relationship (PPGBRPH), Institute of Tropical Pathology and Public Health, Federal University of Goiás, Brazil.
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